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    Re: Azimuth Formula Questions
    From: Doug Royer
    Date: 2005 Nov 2, 10:45 -0800

    > Doug Royer wrote:
    >> I learned and then started to use HO-211 on a regular basis. 28 pages of
    >> data covers just about everything to reduce sights. But that is all it is
    >> capable of doing. It can't compute GC sailings etc
    Bill wrote:
    I am familiar with HO211, although my text says it can be very slow unless
    you have practiced 100 times recently ;-)
    Do not know anything about HO208.  Any chance of filling in yet another gap
    in my education?
    I believe HO-208 was designed by Lichter? And HO-211 was designed by Ageton.
    HO-208 uses the same basic format as does HO-211 and in reality is most
    likely an older method than HO-211. It is a more convoluted system to use
    than is HO-211. I will provide a link that gives downloadable worksheets and
    rules to HO-208 and HO-211 and may provide the data pages for HO-211 also.
    HO-211 is not hard to use or very slow to reduce sights for LOPs at all. If
    you learned the rules to use the HO-214,229 or 249 reduction formats and
    became proficient in using them then HO-211 can be learned and used in about
    the same amount of time. Just as in using the HO-229 or 249 formats to get
    fast,dependable results one must practice using them to do so. It is just a
    different format to accomplish the same thing. Both systems(208 + 211)are
    based to reduce sights by using t(MA)instead of the way the newer tabulation
    methods,except HO-214,are formatted. What is really nice about the HO-211
    system is a person only needs the HO-211 data book (35 pgs) and a NA to
    reduce sights from any band of latitude. One can forget about carrying all
    the volumes of the newer systems onboard. And both are just as "accurate" as
    are the newer tabulation methods of sight reduction "in the real world".
    When I was 1st taught reduction HO-208 was used by the mariners who taught
    me. When I sat for my 1st CG exam for CN the method they used during testing
    was HO-214 so I had to learn that method even though by that time HO-229 was
    used almost exclusively in the fleet. So I also had to learn HO-229 after I
    passed the exam and went back to work in the fleet. Yes, I've used them all
    and each method has its strong and weak points to use but each gets the
    Here is the link:

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